package itheima.mapper;

import itheima.pojo.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

@Mapper
public interface UserMapper {

    /**
     * 根据用户名查询用户
     * @param username
     * @return
     */
    @Select("select * from user where username=#{username}")
    User findByUsername(String username);


    /**
     * 注册用户
     * @param username
     * @param password
     */
    @Insert("insert into user(username,password,create_time,update_time) " +
            "values(#{username},#{password},now(),now())")
    void register(String username, String password);

    @Update("update user set nickname=#{nickname},email=#{email},update_time=#{updateTime} where id=#{id}")
    void update(User user);

    @Update("update user set user_pic=#{avatarUrl},update_time=now() where id=#{id}")
    void updateAvatar(String avatarUrl,Integer id);

    @Update("update user set password=#{newPwd},update_time=now() where username=#{username}")
    void updatePwd(String newPwd, String username);
}













